2,3-Dimethylnaphthalene
2,3-Dimethylnaphthalene (CAS 581-40-8) is a polycyclic aromatic hydrocarbon with the molecular formula C10H6(CH3)2. This organic compound is recognised for its role as a building block in chemical synthesis and organic chemistry research. With a molecular weight of 156.22 g/mol, it serves as a valuable intermediate in the development of more complex chemical structures and materials.
- Synonyms
- C10H6(CH3)22,3-dimethylnaphthalene

Organic Synthesis Intermediate
Utilised as a key component in the synthesis of diverse organic molecules. Its naphthalene core with methyl substituents allows for various chemical transformations.
Research and Development
Employed in laboratory settings for academic and industrial research, particularly in areas of organic chemistry and materials science.
Building Block for Complex Structures
Serves as a foundational element for constructing larger, more intricate chemical entities. Its structure is amenable to functionalisation and derivatisation.
| Molecular weight | 156.22 |
|---|---|
| Linear formula | C10H6(CH3)2 |
| Assay | 97% |
| Boiling point | 269 °C(lit.) |
| Melting point | 103-104 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
- H413May cause long-lasting harmful effects to aquatic life
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 2,3-Dimethylnaphthalene used for?
+
2,3-Dimethylnaphthalene is primarily used as a building block in organic synthesis and for research and development purposes in organic chemistry and materials science.
What are the CAS number and molecular formula for 2,3-Dimethylnaphthalene?
+
The CAS number for 2,3-Dimethylnaphthalene is 581-40-8, and its molecular formula is C10H6(CH3)2. Its linear formula is C10H6(CH3)2.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 2,3-Dimethylnaphthalene with an assay of 97%. This is typically considered a technical or research grade, and TSS does not represent it as USP, BP, or EP grade.
How should 2,3-Dimethylnaphthalene be handled safely?
+
2,3-Dimethylnaphthalene is classified as harmful if swallowed (H302) and may cause long lasting harmful effects to aquatic life (H413). Appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves, should be worn when handling this compound.
How is 2,3-Dimethylnaphthalene packed, shipped, and exported?
+
Tech Serve Solutions, as a specialist global supplier and exporter since 1998, ensures appropriate packing and shipment of chemicals in compliance with international regulations for safe transport and export.
How can I request a quote or sample of 2,3-Dimethylnaphthalene?
+
To request a quote or sample of 2,3-Dimethylnaphthalene, please contact our sales team through the TSS website or by calling our customer service line.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis